2j4d: Difference between revisions
No edit summary |
No edit summary |
||
| Line 3: | Line 3: | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2j4d]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J4D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2J4D FirstGlance]. <br> | <table><tr><td colspan='2'>[[2j4d]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Arabidopsis_thaliana Arabidopsis thaliana]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2J4D OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2J4D FirstGlance]. <br> | ||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=MHF:5,10-METHENYL-6,7,8-TRIHYDROFOLIC+ACID'>MHF</scene>< | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=MHF:5,10-METHENYL-6,7,8-TRIHYDROFOLIC+ACID'>MHF</scene></td></tr> | ||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j4d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j4d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2j4d RCSB], [http://www.ebi.ac.uk/pdbsum/2j4d PDBsum]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j4d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j4d OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2j4d RCSB], [http://www.ebi.ac.uk/pdbsum/2j4d PDBsum]</span></td></tr> | ||
<table> | </table> | ||
== Function == | |||
[[http://www.uniprot.org/uniprot/CRYD_ARATH CRYD_ARATH]] May have a photoreceptor function. Binds ss- and ds-DNA in a sequence non-specific manner. Has a photolyase activity specific for cyclobutane pyrimidine dimers in ssDNA.<ref>PMID:17062752</ref> | |||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
| Line 29: | Line 31: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Arabidopsis thaliana]] | [[Category: Arabidopsis thaliana]] | ||
[[Category: Batschauer, A | [[Category: Batschauer, A]] | ||
[[Category: Essen, L O | [[Category: Essen, L O]] | ||
[[Category: Klar, T | [[Category: Klar, T]] | ||
[[Category: Pokorny, R | [[Category: Pokorny, R]] | ||
[[Category: Blue-light response]] | [[Category: Blue-light response]] | ||
[[Category: Chloroplast]] | [[Category: Chloroplast]] | ||
Revision as of 20:58, 25 December 2014
CRYPTOCHROME 3 FROM ARABIDOPSIS THALIANACRYPTOCHROME 3 FROM ARABIDOPSIS THALIANA
Structural highlights
Function[CRYD_ARATH] May have a photoreceptor function. Binds ss- and ds-DNA in a sequence non-specific manner. Has a photolyase activity specific for cyclobutane pyrimidine dimers in ssDNA.[1] Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCryptochromes are almost ubiquitous blue-light receptors and act in several species as central components of the circadian clock. Despite being evolutionary and structurally related with DNA photolyases, a class of light-driven DNA-repair enzymes, and having similar cofactor compositions, cryptochromes lack DNA-repair activity. Cryptochrome 3 from the plant Arabidopsis thaliana belongs to the DASH-type subfamily. Its crystal structure determined at 1.9 Angstroms resolution shows cryptochrome 3 in a dimeric state with the antenna cofactor 5,10-methenyltetrahydrofolate (MTHF) bound in a distance of 15.2 Angstroms to the U-shaped FAD chromophore. Spectroscopic studies on a mutant where a residue crucial for MTHF-binding, E149, was replaced by site-directed mutagenesis demonstrate that MTHF acts in cryptochrome 3 as a functional antenna for the photoreduction of FAD. Cryptochrome 3 from Arabidopsis thaliana: structural and functional analysis of its complex with a folate light antenna.,Klar T, Pokorny R, Moldt J, Batschauer A, Essen LO J Mol Biol. 2007 Feb 23;366(3):954-64. Epub 2006 Dec 2. PMID:17188299[2] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
|
| ||||||||||||||||